Sugary Drinks Linked to Rising Anxiety in Adolescents, Study Finds

A new meta-analysis has uncovered a link between sugary drinks and anxiety in young people. Published in the Journal of Human Nutrition and Dietetics, the study suggests that adolescents consuming high amounts of sweetened beverages may face a greater risk of anxiety symptoms. Researchers warn, however, that the findings do not prove direct causation.

The study, led by Dr. Karim Khaled at Bournemouth University, reviewed data from multiple investigations. It found a consistent pattern: higher intake of sugary beverages—such as carbonated soft drinks, energy drinks, and sweetened coffees and teas—was associated with increased anxiety symptoms in adolescents.

Possible explanations include physiological effects of excess sugar. These may trigger systemic inflammation, disrupt neurochemical pathways, or interfere with neuroendocrine functions, all of which could heighten vulnerability to anxiety. With around 20% of children and adolescents already affected by mental health disorders in 2023, identifying modifiable risk factors like diet has become urgent.

Dr. Chloe Casey, a co-author, stressed the need for deeper research into biological mechanisms. She also called for targeted interventions to address the issue. The team recommends future longitudinal and experimental studies to clarify temporal and causal relationships, as well as to test the effectiveness of potential solutions.

No new government or international policies—such as stricter labelling, school-based programmes, or marketing restrictions—have been introduced since the meta-analysis was published.

The findings highlight a potential connection between sugary drink consumption and anxiety in young people. While the study does not confirm causation, it underscores the importance of further investigation into dietary influences on mental health. Researchers urge continued efforts to explore interventions and biological pathways behind this association.